Newbie: Did i blow a fuse?

I was installing a radar sensor add-on to my alarm and i was wiring it into my shock sensor in the rear passenger side thingy... I unplugged the shock sensor and wired it into the car side of the plug. This, i think, was my mistake. Now, not only does the sensor not work, but i can't remote release my trunklid and i have no gauges. is this a fuse? and if so which one? if not then how badly did i mess stuff up?